Normally you close a switch, or turn on a transistor (coming soon!) in order to turn a load or output on. A NOT gate/digital inverter circuit is made so that the load/output is on, until a switch is closed, or transistor is turned on, at which point the load/output is turned off. I also made a fun 555 timer logic inverter circuit in this series. Brief 555 Schmitt trigger logic inverter
Affiliate link ad. The integrated circuits in kits like these have logic gates and other circuitry built in.
Affiliate link ad. My all time favorite book. Check it out!
Lower diagram is not included in the video.
- Quick NPN BJT switch circuit – Bipolar Junction Transistor
- Brief PNP BJT switch circuit – Bipolar Junction Transistor
- Brief NPN BJT timed off fade circuit- RC time constant
- Brief PNP BJT timed fade off switch – 2N3906 bipolar junction transistor
- Brief NPN BJT current source controlled by trimpot voltage divider circuit
Support this site!
As an Amazon Associate I earn from qualifying purchases.